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| author | Kay Sievers <kay.sievers@vrfy.org> | 2007-03-14 03:25:56 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-04-27 10:57:28 -0700 |
| commit | 864062457a2e444227bd368ca5f2a2b740de604f (patch) | |
| tree | 38e516852ee9825b5ffe0b1f2e8abea0a88b1674 /lib/kobject_uevent.c | |
| parent | 00ed8e3dda47f8421b11da17e353d7db8c878121 (diff) | |
| download | lwn-864062457a2e444227bd368ca5f2a2b740de604f.tar.gz lwn-864062457a2e444227bd368ca5f2a2b740de604f.zip | |
driver core: fix namespace issue with devices assigned to classes
- uses a kset in "struct class" to keep track of all directories
belonging to this class
- merges with the /sys/devices/virtual logic.
- removes the namespace-dir if the last member of that class
leaves the directory.
There may be locking or refcounting fixes left, I stopped when it seemed
to work with network and sound modules. :)
From: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib/kobject_uevent.c')
| -rw-r--r-- | lib/kobject_uevent.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 82fc1794b691..4122f38330d4 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -115,6 +115,16 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, return 0; } + /* originating subsystem */ + if (uevent_ops && uevent_ops->name) + subsystem = uevent_ops->name(kset, kobj); + else + subsystem = kobject_name(&kset->kobj); + if (!subsystem) { + pr_debug("unset subsytem caused the event to drop!\n"); + return 0; + } + /* environment index */ envp = kzalloc(NUM_ENVP * sizeof (char *), GFP_KERNEL); if (!envp) @@ -134,12 +144,6 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action, goto exit; } - /* originating subsystem */ - if (uevent_ops && uevent_ops->name) - subsystem = uevent_ops->name(kset, kobj); - else - subsystem = kobject_name(&kset->kobj); - /* event environemnt for helper process only */ envp[i++] = "HOME=/"; envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin"; |